MH370 lost at sea: search on for debris, black box, answers

Day 19 of the search for the missing Malaysia Airlines flight MH370 has seen an exponential rise in the number of objects - potentially from the now declared crashed flight. French satellites have now spotted 122 objects - some as large as 23 metres long. Are they from the airliner? Families and friends of the 239 people on board are desperate for answers. Can those questions be answered? The world's most sophisticated technology in the skies, on the sea and underwater are looking for those answers.